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Re: Shift coupler improvement.
Posted by: Johnniespeed ()
Date: March 21, 2011 10:38AM

Yes the steering coupler has grease seals, but no grease fittings. Borgeson,Flaming River, Randy Sweet all have the steering universal joints and you can also get them with the rubber vibration damper.
I had several new joints laying around, Versa/Sentra and Prius/Camry are pretty much identical.
The trans shaft is about .560"-.561" OD and very hard. The original thought was to ream pin hole oversize and use oversize pin.Second thought was to use two pointed set screws in place of the pin.Third thought was collett type clamp. The real issue is not the coupler looseness,easy to replace, but the trans selector shaft pin hole fit.

John

1962 Rampside
Powered by Injected Vortec 4.3

Sunny Suburban Sparta Michigan.

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Re: Shift coupler improvement.
Posted by: Phil Dally ()
Date: March 21, 2011 12:38PM

This is my exact plan to shift the 915!!

Paso Robles CA and Palmtuckey CA-Unsafe At Any Landspeed-Sidewinders (est 1938) CORSA Member-Corsa West-High Desert Corvairs Corvanatic-Ventura County Corvair-Central Coast Corsa-Angel Fan Since 1978...HALO POWER!! So Cal Gas Since 1974 (retired) L/M Landspeed 3L/915 T04B methanol Coupe-65 Corsa-62 Rampside(2)-B&M Blown Mid Engine Funco Sandrail-Next Build L/M ADE/BBC/PG/QC Street Racer-Diesel Streamliner 7.3IDI/C6/GV/9" Dream-1939 Lincoln Zephyr V12-Vehicles in My Possession...12

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Re: Shift coupler improvement.
Posted by: Johnniespeed ()
Date: March 22, 2011 02:39AM

Phil
I hope you have the record winning fastest shifter. To visit Bonneville on speed week is a bucket list goal of mine, then scoot over to Glamis for some dune action. Good to have goals.

John

1962 Rampside
Powered by Injected Vortec 4.3

Sunny Suburban Sparta Michigan.

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Re: Shift coupler improvement.
Posted by: Vairismo ()
Date: March 22, 2011 05:21AM

I notice that you seem to have eliminated any fore and aft adjustability. Does anyone know if that will
ever be an issue down the road? Was there a reason the factory had the capacity to adjust? I would think
you can get away with it that way as long as nothing changes much.

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Re: Shift coupler improvement.
Posted by: Johnniespeed ()
Date: March 22, 2011 10:54AM

This has the full fore and aft adjustment exactly like original. This is on a Forward Control ( Rampside,Loadside,Greenbier,Corvan,) The adjustment is on the front end of the shift shaft.
If I were adressing a car issue, I would have included the adjustment in my solution as I like to be able to make fine adjustments. Also note the shift coupler is welded onto the shift shaft originally,from the factory, on the FC models.

John

1962 Rampside
Powered by Injected Vortec 4.3

Sunny Suburban Sparta Michigan.

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Re: Shift coupler improvement.
Posted by: OttawaCorvairGuy ()
Date: March 22, 2011 02:06PM

John, I don’t mean to hi-jack your thread. I like to learn a little more about the FC shift linkage.

I had to start moving all my parts cars a few days ago.

Long story short - when I got to the 61 Van, I shook the shifter and thought I was in "N" I went to pull it out of where it had sat for the past couple of years.

After a while I notice it was not rolling well. I then saw one wheel dragging in the earth.

My shifter has so much play in it - which it felt like it was in "N" when it was in gear.

I know nothing about FC linage - is there bushing up front - or is all of the play from what you have modified?

Thanks, Tony

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Re: Shift coupler improvement.
Posted by: Johnniespeed ()
Date: March 22, 2011 10:51PM

OttawaCorvairGuy
I dont consider anything to be hijacked, we are just a bunch of guys talking about making our Corvairs the best they can be.
There are two types of FC shifters, the early model 1961-62 ( also known as the mystery shifter) and the late model 1964-65. I dont know which one 1963 uses as my 63 Rampside was an automatic.
I personally prefer the early style as I am able to get those to feel the tightest, but most others dislike the early,as they have not discovered how to rebush and shim them yet.
The 64-65 type shifter has a hole in the gas tank for the shift rod to pass through, I call that the "Holy Tank". 61-62 shifters can use either tank but came without the hole from the factory. Even after rebushing the late style, I think that type feels sloppy.
Clarks catalog has pictures of each style.
To answer your question more directly, every joint,every pin, every bore becomes worn on these shifters. What I have done is ream the bores oversize and press in bushings, I shim the sides of the shift lever too. Below the shift lever is a part that looks like a smoking pipe. I make a housing that holds three bearings to allow the shift rod to glide in bearings but yet rotate in a bronze bushing. All of that was very simple and easy, but the part that challenged me was how to get rid of the sloppy pin fit in the transmission selector shaft. As I stated before my original thought was to ream the transmission shaft oversize and use a larger pin, but the selector shaft is very hard, I practiced using a pencil grinder to no avail,I no longer have access to an EDM machine, so the second thought was to use two opposing,pointed set screws,but that did not allow two axis misalignment.
I think any time you can reduce a loose fit the shift feel will be improved. What I did was lay the entire shifting mechanism on my bench from the shift knob all the way back including a transmission, then I studied each part to determine how to eliminate wear,slop and looseness.
Sharing my newfound information is my way of trying to help others.

John

1962 Rampside
Powered by Injected Vortec 4.3

Sunny Suburban Sparta Michigan.

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Re: Shift coupler improvement.
Posted by: mechanicalman ()
Date: August 25, 2011 06:12AM

i saw this thread and RAN to the junkyard to replicate it!

I got my joint from a subaru, cut the original shift coupler roughly in half and welded it to the universal joint. With this setup, I can still adjust and disassemble the shifter tube.

Really happy with how tight the shifter is now.

=================================================

'65 Black Monza Coupe w/black interior
110HP w/4-spd

Greetings from Oakland, CA!

no trim badges anywhere (and there never will be!)

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Re: Shift coupler improvement.
Posted by: UGLYTRUK ()
Date: August 25, 2011 06:19AM

NICE!!!

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Re: Shift coupler improvement.
Posted by: Johnniespeed ()
Date: August 25, 2011 10:47AM

The best part of this mod, is that the coupler is locked tight onto the transmission shift shaft, no movement, no slop. Universal joint allows misalignment in every direction.

John

1962 Rampside
Powered by Injected Vortec 4.3

Sunny Suburban Sparta Michigan.

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Re: Shift coupler improvement.
Posted by: UGLYTRUK ()
Date: August 25, 2011 11:58AM

So is this is applicable to Late cars?

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Re: Shift coupler improvement.
Posted by: jimc ()
Date: August 25, 2011 02:55PM

I hope you take this as a compliment, but that is almost Porsche-like.

I also am interested if this is adaptable to Late Model Vairs.

jimc
1965 Corsa

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Re: Shift coupler improvement.
Posted by: Andrew ()
Date: August 25, 2011 03:31PM

Vairismo Wrote:
-------------------------------------------------------
Was there a reason
> the factory had the capacity to adjust?

The adjustement on the shift rod is for EM cars when you shift the powertrain forwards or backwards for rear toe-in. Also, the manual explains how to adjust it so the forward gears aren't as much of a reach, when the seat is in the rear most position for tall drivers. Of course when the shifter is adjusted rearward this way, sometimes it hits the seat in the rear gear positions if the seat is pushed forward again...usually only on bench seat cars.

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Re: Shift coupler improvement.
Posted by: lgoodwin ()
Date: August 25, 2011 08:35PM

ME TOO. but I want to make it so it can be adjusted fore/aft AND be removable, AND have the rubber bushing, just like the original part. Then it would work on early and late cars and be easy to install with no welding, etc.

No disrespect to Clarks, but if I have to pay over $40 for a simple coupler, I'd rather have a really GOOD one.

John, you said "Borgeson and others offer the joint with a rubber coupler too.". Do you know the part number for this version and where to get it? Any other technical details also appreciated!

1962 Corvair 900 sedan1967 Corvair Monza 140/4-speed1968 Corvair 500 coupe1983 Mexican Mustang 5.0
1962 900 sedan needs a home1967 Monza 140/4-spd1968 500 coupe (now my son's)1983 Mexican Mustang 5.0

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Re: Shift coupler improvement.
Posted by: Johnniespeed ()
Date: August 25, 2011 10:31PM

Borgeson,Flaming River and Randy Sweet all have these , with or without the rubber vibration damper.
Call them or Google them, the part number cant be that hard to get. But dont tell them you are using it on a shifter, or they will tell you to get lost.
I had several new Nissan and Toyota ones laying around. I used either the Prius or Versa joint.
The technical details are in my pictures, I think.

John

1962 Rampside
Powered by Injected Vortec 4.3

Sunny Suburban Sparta Michigan.

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Re: Shift coupler improvement.
Posted by: lgoodwin ()
Date: August 25, 2011 11:05PM

Johnniespeed Wrote:
-------------------------------------------------------
> Borgeson,Flaming River and Randy Sweet all have
> these , with or without the rubber vibration damper.
> Call them or Google them, the part number cant be
> that hard to get. But dont tell them you are using
> it on a shifter, or they will tell you to get lost.
> I had several new Nissan and Toyota ones laying
> around. I used either the Prius or Versa joint.
> The technical details are in my pictures, I think.
OK. Was hoping you would post the part number and dimensions of the one you used, including the ID on both ends, but guess I can find out.
I don't see why any supplier would care if a customer intends to use a steering coupler for shift linkage. In terms of safety, steering is much more critical to than shifting! ;-}
I'd like to find one that fits the shift tube on one end and the shift shaft on the other, with little or no adaptation. No idea if anyone makes one that meets these expectations or not. Guess I'll find out...

1962 Corvair 900 sedan1967 Corvair Monza 140/4-speed1968 Corvair 500 coupe1983 Mexican Mustang 5.0
1962 900 sedan needs a home1967 Monza 140/4-spd1968 500 coupe (now my son's)1983 Mexican Mustang 5.0

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Re: Shift coupler improvement.
Posted by: Johnniespeed ()
Date: August 26, 2011 02:51AM

One of the many reasons I own a Corvair, is the challenge.
I hope you can find materials that meet your needs. I used new parts that I had laying around. But if I didnt have them,I know that Randy Sweet does.
A little measuring, drilling,reaming,turning,tapping, welding and presto, you have success.

John

1962 Rampside
Powered by Injected Vortec 4.3

Sunny Suburban Sparta Michigan.

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Re: Shift coupler improvement.
Date: August 26, 2011 03:11AM

It was written
"No disrespect to Clarks, but if I have to pay over $40 for a simple coupler, I'd rather have a really GOOD one."

Or you could buy one from us for $38.00 with urethane and a new pin.

Lon
www.corvairunderground.com

Incidentally not all FC's didn't have the rubber. The earlier models without rubber also have the yoke permanently manufactured as part of the entire shaft.

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Re: Shift coupler improvement.
Posted by: mechanicalman ()
Date: August 26, 2011 10:14AM

UGLYTRUK Wrote:
-------------------------------------------------------
> So is this is applicable to Late cars?

i did this to my 65 coupe. really cleaned things up in a big way.

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Re: Shift coupler improvement.
Posted by: lgoodwin ()
Date: August 26, 2011 04:34PM

mechanicalman Wrote:
-------------------------------------------------------
> UGLYTRUK Wrote:
> --------------------------------------------------
> -----
> > So is this is applicable to Late cars?
>
> i did this to my 65 coupe. really cleaned things
> up in a big way.
I'd like to believe that this mod will solve all my shifting issues too.
What symptoms were you having with your shift linkage BEFORE that went away AFTER the modifcation?

The coupler on my 68 coupe is "not that worn". It goes through cycles where the shift lever binds when trying to move it left/right. Just started doing this again a couple of weeks ago. I've never found a specific cause. I replaced the trans (4-speed) with another used one this summer, and result was normal shifting for the first time since I've had this car. Now, it's going back to the way it was before.
Maybe it's just the lube job I did, and not the trans replacement that made it work so much better, but I've lubed it several other times before the swap and not had that kind of improvement. I've never had the shifter out/apart. Maybe it's time to do that. Thanks!

1962 Corvair 900 sedan1967 Corvair Monza 140/4-speed1968 Corvair 500 coupe1983 Mexican Mustang 5.0
1962 900 sedan needs a home1967 Monza 140/4-spd1968 500 coupe (now my son's)1983 Mexican Mustang 5.0

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